Communications: electrical – Systems – Call station
Patent
1975-10-14
1977-05-24
Caldwell, John W.
Communications: electrical
Systems
Call station
320 48, G08B 2100
Patent
active
040259161
ABSTRACT:
A battery condition monitoring device and technique which senses battery terminal voltage at a predetermined time period after initial loading of the battery and determines battery condition as a result of such tests. A function of the terminal voltage is created and the time period determined by the length of time required for that function to reach a predetermined level. The test is performed on the slope of the terminal voltage transient.
REFERENCES:
patent: 3500167 (1970-03-01), Applegate et al.
patent: 3621359 (1971-11-01), Schnegg
Arnold John B.
Bowyer John M.
Hegbar Howard R.
Shaefer Archie B.
Caldwell John W.
Goodyear Aerospace Corporation
Myer Daniel
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